Search Results for author: Li Xiang

Found 9 papers, 4 papers with code

DiffDet4SAR: Diffusion-based Aircraft Target Detection Network for SAR Images

1 code implementation4 Apr 2024 Zhou Jie, Xiao Chao, Peng Bo, Liu Zhen, Liu Li, Liu Yongxiang, Li Xiang

Aircraft target detection in SAR images is a challenging task due to the discrete scattering points and severe background clutter interference.

Denoising

DI-V2X: Learning Domain-Invariant Representation for Vehicle-Infrastructure Collaborative 3D Object Detection

1 code implementation25 Dec 2023 Li Xiang, Junbo Yin, Wei Li, Cheng-Zhong Xu, Ruigang Yang, Jianbing Shen

Specifically, DMA builds a domain-mixing 3D instance bank for the teacher and student models during training, resulting in aligned data representation.

3D Object Detection object-detection +1

Secure and Fast Asynchronous Vertical Federated Learning via Cascaded Hybrid Optimization

no code implementations28 Jun 2023 Ganyu Wang, Qingsong Zhang, Li Xiang, Boyu Wang, Bin Gu, Charles Ling

Meanwhile, the upstream model (server) is updated with first-order optimization (FOO) locally, which significantly improves the convergence rate, making it feasible to train the large models without compromising privacy and security.

Privacy Preserving Vertical Federated Learning

DINF: Dynamic Instance Noise Filter for Occluded Pedestrian Detection

no code implementations13 Jan 2023 Li Xiang, He Miao, Luo Haibo, Xiao Jiajie

Regarding to the noise issue, from the perspective of denoising, an iterable dynamic instance noise filter (DINF) is proposed for the RCNN-based pedestrian detectors to improve the signal-noise ratio of the instance feature.

Denoising Pedestrian Detection

TSAA: A Two-Stage Anchor Assignment Method towards Anchor Drift in Crowded Object Detection

no code implementations2 Nov 2022 Li Xiang, He Miao, Luo Haibo, Yang Huiyuan, Xiao Jiajie

The anchor drift reflects that the anchor-object matching relation, which is determined by the degree of overlap between anchors and objects, is not always optimal.

Object object-detection +1

Toward Clinically Assisted Colorectal Polyp Recognition via Structured Cross-modal Representation Consistency

1 code implementation23 Jun 2022 Weijie Ma, Ye Zhu, Ruimao Zhang, Jie Yang, Yiwen Hu, Zhen Li, Li Xiang

By aligning the class tokens and spatial attention maps of paired NBI and WL images at different levels, the Transformer achieves the ability to keep both global and local representation consistency for the above two modalities.

Classification Image Classification

Colorectal Polyp Classification from White-light Colonoscopy Images via Domain Alignment

no code implementations5 Aug 2021 Qin Wang, Hui Che, Weizhen Ding, Li Xiang, Guanbin Li, Zhen Li, Shuguang Cui

Thus, we propose a novel framework based on a teacher-student architecture for the accurate colorectal polyp classification (CPC) through directly using white-light (WL) colonoscopy images in the examination.

Contrastive Learning

Understanding the Disharmony between Weight Normalization Family and Weight Decay: $ε-$shifted $L_2$ Regularizer

1 code implementation14 Nov 2019 Li Xiang, Chen Shuo, Xia Yan, Yang Jian

These methods use standardization or normalization that changes the weight $\boldsymbol{W}$ to $\boldsymbol{W}'$, which makes $\boldsymbol{W}'$ independent to the magnitude of $\boldsymbol{W}$.

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